class mediator_interface_of_menu :
    def show_menu ( self ) :
        self . _modules . menu_gui . show_menu ( )
        self . _modules . menu_logic . show_menu ( )
    def hide_menu ( self ) :
        self . _modules . menu_logic . hide_menu ( )
        self . _modules . menu_gui . hide_menu ( )
    def configure_title_text_for_menu ( self , title_text ) :
        self . _modules . menu_logic . configure_title_text_for_menu ( title_text )
    def configure_next_row_for_menu ( self , row_text , row_callback ) :
        self . _modules . menu_logic . configure_next_row_for_menu ( row_text , row_callback )
